Growing meat consumption in developing countries poses a significant climatic threat, with meat demand by emerging middle classes expected to rise 76 per cent by 2050, a report warns.
The report, published yesterday by the UK think-tank Chatham House, says meat consumption is responsible for the same amount of greenhouse gas emissions as all the world's vehicles. The study calls for more education and interference by governments to curb meat eating around the globe and make animal husbandry more sustainable.
"Ahead of [the Paris summit], we've seen over 160 countries submit their national pledges outlining what they're going to do to tackle climate change, and unsustainable diets aren't mentioned in any of those," says Laura Wellesley, one of the authors of Changing climate, changing diets and research associate at Chatham House. Without changing diets it would be impossible to meet international goals to curb global warming, she says.
Beef production alone generates 56 kilograms of CO2 per kilogram of meat produced, the report says. It warns that demand for meat products is booming across Africa, Latin America and the Middle East - where meat is considered an important part of a meal and is becoming increasingly more affordable.
Using data from surveys around the world and focus groups in Brazil, China, the United Kingdom and the United States, the report concludes that governments may be overestimating public resistance to dietary policies.
But regional problems might scupper such efforts, as developing countries prioritise other issues, including food security and economic crises. In Brazil, Viola says the powerful meat industry is opposed by a weak government, which means a health campaign is likely to fail.
The data from the report also shows that meat consumption increases rapidly as countries develop, but flatlines when average incomes reach around US$25,000 a year, before declining in the wealthiest countries. The report puts this down to higher education and awareness of health issues and climate change in these countries.